Remarks on CP Asymmetries in D⁰/ D⁰ \ra K_S π⁺ π^-

2002/03/18 by S. Arunagiri, Arunagiri, S.
Mathematics · Physics and Astronomy · #Advanced Mathematical Physics Problems #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0203174

7 pages, latex, 1 eps figure

arxiv created 2002/03/18 · openalex publication_date 2002/03/18 · arxiv updated 2009/11/30 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

We consider the interference of resonant amplitudes leading to the final state K_S π⁺ π^- in D⁰/ D⁰ decays. Each of these amplitudes consists of both Cabibbo allowed and doubly Cabibbo suppressed transitions. The role of strong phase arising out of Breit-Wigner resonant propagators is emphasised. Invoking the ΔS = ΔQ rule, K_S in the final state is identified as the mass eigenstate of superposed weak eigenstates K⁰ and K⁰. A nonzero CP asymmetry appears to be possible in three body decays.

Related

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